Base | Representation |
---|---|
bin | 10011100101010110001 |
3 | 1012121021011 |
4 | 2130222301 |
5 | 131013323 |
6 | 21430521 |
7 | 5311612 |
oct | 2345261 |
9 | 1177234 |
10 | 641713 |
11 | 3a9146 |
12 | 26b441 |
13 | 196117 |
14 | 129c09 |
15 | ca20d |
hex | 9cab1 |
641713 has 2 divisors, whose sum is σ = 641714. Its totient is φ = 641712.
The previous prime is 641701. The next prime is 641747. The reversal of 641713 is 317146.
641713 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 471969 + 169744 = 687^2 + 412^2 .
It is a cyclic number.
It is not a de Polignac number, because 641713 - 25 = 641681 is a prime.
It is not a weakly prime, because it can be changed into another prime (641213) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 320856 + 320857.
It is an arithmetic number, because the mean of its divisors is an integer number (320857).
2641713 is an apocalyptic number.
It is an amenable number.
641713 is a deficient number, since it is larger than the sum of its proper divisors (1).
641713 is an equidigital number, since it uses as much as digits as its factorization.
641713 is an evil number, because the sum of its binary digits is even.
The product of its digits is 504, while the sum is 22.
The square root of 641713 is about 801.0699095585. The cubic root of 641713 is about 86.2542054940.
Adding to 641713 its reverse (317146), we get a palindrome (958859).
It can be divided in two parts, 6 and 41713, that multiplied together give a triangular number (250278 = T707).
The spelling of 641713 in words is "six hundred forty-one thousand, seven hundred thirteen".
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